The Valve,purge, cataloged under National Stock Number 4820-01-325-0717, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bird-Johnson Propeller Company, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-325-0717 |
| Primary Part Number | 115632140 |
| Item Name | Valve,purge |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bird-Johnson Propeller Company, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | LAP VALVE SEAT WITH VALVE LINER; ALSO HAVE VALVE PIN AND SPRING HOLDER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 115652137FN21 | Bird-Johnson Propeller Company, Llc (USA) |
| 115652136FN21 | Bird-Johnson Propeller Company, Llc (USA) |
| 115632140 PRIMARY | Bird-Johnson Propeller Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 115652137 | D/9 Drawing number reference only Bird-Johnson Propeller Company, Llc |
| 115652136 | D/9 Drawing number reference only Bird-Johnson Propeller Company, Llc |
NSN 4820-01-325-0717 is a Valve,purge, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-325-0717 has 3 manufacturer part numbers on file: 115652137FN21 (Bird-Johnson Propeller Company, Llc), 115652136FN21 (Bird-Johnson Propeller Company, Llc), 115632140 (Bird-Johnson Propeller Company, Llc).
1 possible match (shared part number, not a government interchangeability claim): 2010-01-325-1227. Verify interchangeability with system specifications before substitution.
Key specifications for 115632140: General Characteristics Item Description: LAP VALVE SEAT WITH VALVE LINER; ALSO HAVE VALVE PIN AND SPRING HOLDER. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.